Mechanism for curling the flanges of can ends and the like



J. F. PETERS MECHANISM FOR CURLING THE FLANGES OF CAN ENDS AND THE LIKE Filed Ma '12. 1921 3 Sheets-Sheet 1v 0v. 1, Lmsfig J. F. PETERS MECHANISM FOR CURLING THE FLANGES OF CAN ENDS AND THE LIKE Filed May 12, 1921 3 Sheets-Sheet? mm g v A hill/bIWIIIIWIIII/IIIIIIIIIIIIA7 III/ 7111111111114 J.AF. PETERS MECHANISM FOR CURLING THE FLANGES OF CAN ENDS AND THE LIKE 5 Filed May 12 192 I5 Sheets-Sheet 5 his? JO J2 J W52 u Tll Fatented l lov.

JOHN FRIEDRICH PETERS, OF ROCHESTER, NEW YORK, ASSIGNOR TO AMERICAN CAN conranr, or new roan, ar. an,

A CORPORATION OF NEW JERSEY.

nncnanrsia ron cunrane- 'rnn rnanens or can [nuns arm can mam.

Application filed May 12 To all whom it my camera:

Be it known that 1, JOHN FREDRICK Parana, a citizen of the United States, residing in Rochester, in the county of Monroe 3 and State of New York, have invented a new and useful Improvement in Mechanism for Curling the Flanges of Can Ends and the like, of which the following is a specification.

My invention relates in general to metal forming machinery and has more particular reference to mechanism for curling the flanges of canends and the like.

A principal object of the invention is the m provision of a curling machine adapted topermit a longer course of travel of the can ends within the curling grooves without enlarging the essential units or general size t the machine.

A further object of the invention is the provision of mechanism of this character adapted to ed'ect'a rapid operation upon the can ends and having efficient means for transferring the ends from one stage of operation to another.

1 Another object of the invention is the provision of a generally improved curling machine having the foregoing characteristics and adapted to be used in conjunction with a press by which the ends are roughly formed, the machines being so positioned with relation to each other that the ends may be delivered througha gravity chute from the press to the curling machine.

Numerous other objects and advantages of the invention will be apparent as it is better understood from the following description, which, taken in connection with the accompanying drawings, discloses a prem ferred embodiment thereof.

Referring to the drawings: Figure 1 is a side elevation of a curling machine, embodying my invention, and a press shown in outline in'its relative position with respect to the curling machine.

Fig. 2 is a plan view of the curling mech anism and directing chutes.

Fig. 3 isa vertical section taken substantiallv on the line 3-3 of'Fig. 2.

' Fig. 4 is a h agmentary section taken substantially on the line H of Fig. 2, and showing a can end in the upper curling groovm. v

Fig. 3 is a mimilar section r we 1921. Serial No. seams.

tially on the line 5-5 in Fig. 2 and showing the end in the lower grooves.

Z Fig. 6 is an enlarged vertical section taken substantially on line 6-6 in Fig. 3.

Upon the drawings, which I have used for the purpose of illustrating the invention, the reference numeral llfindicates generally a press adapted to perform a forming operation upon can ends and having a discharge chute 12 inclined-downwardly. Near the base of the press is positioned a curling machine constructed in accordance with my invention and supported upon brackets 13 which in turn are secured to feet 14 bolted or otherwise attached to the floor. The curling machine comprises primarily a frame 15 which is of circular formation and has secured to an upstanding flange 16 thereon a curling ring segment 17. These parts are secured together by means of a plurality of bolts 18 which are threaded and carry nuts 19 on the exterior of the flange 16, this arrangement being for the purpose 1 of permitting adjustment of the position of the ring segment 17 Beneath the frame 15, and having hearings in the supporting bracket 13, is a shaft 21 carrying a bevel gzar 22. This gear meshes with another vel gear 23 which is secured to a stub shaft 24 extending vertically through an aperture 25 in the central portion of the frame member 15. Secured to this shaft by means of a set screw 26 is a curlin wheel 27 having a hub part 28 through which said set screw extends. Immediately beneath this hubpart and extending upwardly from the bottom frame 15 about the aperture 25 is a stud or projection 29 adapted to slightly elevate the wheel 27 within the frame 15.

The wheel 27 is formed of two rings 31 and 32, slightly'separated by blocks 33, and secured together by means of bolts 34;. In these rings and extending entirely around their. periphery'are grooves and 36, one being positioned directly above the other.

It will be understood that this wheel is rotatable by means of the gearing and shaftin prevlously described.

e segmental 17 is formed in sections37, 38, 39, 41 and 42, these sections being secured together by means of bolts 43. In the section 39 are cut out portions 44 i and 45,"which, with the cooperation of the sections 38 and 41, form an wa 46 d M ltd adapted to register and cooperate with the grooves 35 and 36 in the curling wheel 2?. It will be noted that this segment is of semicircular formation extending about the front part of the frame 15. I

The ends 50 are received through the chute 12 impartially formed condition and guided by 'means of directing guides 48 and 49 between the upper grooves 35 and 46 in the curling wheel and ring segment respectively, and by means of the rotation of the wheelv are passed around through said grooves to the opposite extremity 51 of the segment 17. Upon reaching this point the centrifugal force of the wheel 27 throws the end out of the groove 35 and into a chute ,end of said segment into a passageway or ',chute 53,,which is positioned beneath the .chute 52 and leads to a discharge chute 54 in which the curled ends are stacked, it being understood that the chutes 52 and 53 are positioned at the respective levels of the upper and lower pairs of grooves.

It will be manifest that the mechanism which I have provided; provides increased length of travel of the ends in the curling grooves and thus permits more perfect formation of the curled flanges than is possible in the ordinary-curling machine, and at the same time re'quires no enlargement of the operating units employed.

It is thought that the invention and many of its attendant advantages will be understood from the foregoing. description, and it will be apparent that various changes may be made in the form, construction and ar rangement of the parts without departing from the spirit and scope of the invention or sacrificing allof its material advantages, the form hereinbefore described bein merely a preferred embodiment thereof.

I claim:

1. Mechanism for curling the flanges of can ends and the like, comprising inner and outer curling units having a common center, each of said units having a plurality of sets of cooperating curling grooves, said sets being arranged on different levels, and means for passing the ends through each-of said sets of grooves.

2. Mechanism for curling the flanges of can ends and the like, comprising inner and outer curling units having a common center,

' each of said units having a plurality of sets of cooperating curling grooves, said sets being operatively consecutive one after the mangoes other, and bein arranged on difierent levels whereby to increase the length of travel of the ends in the curling mechanism without increasing the size of said mechanism, and means for passing the ends through each of said sets of grooves.

3. Mechanism for curling the flanges of can ends and the like, comprising inner and outer curling units having a common center, each of said units having a plurality of sets of cooperating curling grooves, one of said units being rotatable and the sets of rooves being arranged on different leve s, and

. means for passing the ends through each of said sets of grooves.

4:. Mechanism for curling the flanges of can ends and the like, having in combination a plurality of curling units, each of said units having a plurality of separate superposed sets of curling means, and means for passing the can ends through each of said sets.

5. Mechanism for curling the flanges of can ends and the like, comprising inner and outer curling units having a common center, each of said units having a plurality of sets of cooperating-curling grooves, said sets being arranged on difl'erent levels, and means for passing the ends through each of said sets of grooves, said means comprising a device for rotating one of said curling unitl and an inclined chute for transferring the ends from one set of grooves to another.

6. Mechanism for curling the flanges of can ends and the like, comprising inner and outer curling units having a plurali of sets of cooperating curlin grooves, sai sets being arranged on di erent levels, and means for passing the ends through each of said sets of grooves, one of said curling units being a rotatable wheel having grooves extending entirely about its periphery and the other being stationary and of semi-circular formation.

7. Mechanism for'curling the flanges of can ends and the like, comprisin a frame of circular formation, a rotatab e curling wheel mounted therein, a curling ring segg ment positioned outwardly from said wheel and within said frame, there being sets of grooves in said wheel and ring segment arranged upon difi'erent levels, and means for passiifig the ends through each set of grooves.

8. echanism for curling the flanges of can ends and the like, comprising a frame of circular formation, a rotatable curling wheel mounted therein, a curling ring segment p0- sitioned outwardly from said wheel and within said frame, there being sets of grooves in said wheel and ring segment arranged upon difl'erent levels, and means for transferring the ends from one set of grooves to another.

9. Mechanism for curling the flanges of can ends and the like, comprising a frame of circular formation, a rotatable curling wheel mounted therein, a, curling ring segment positioned outwardly from said wheel and within said frame, there being sets of grooves in said wheel and ring segment arranged upon different levels, and means for revolving said curling wheel and for passing the ends through the several sets of grooves and out of the machine.

10. Mechanism for curling the flanges of can ends and the like, comprising a frame of circular formation, a rotatable curling wheel mounted therein, a curling ring segment positioned outwardly from said wheel and within said frame, there being sets of grooves in said whee-1 and ring segment arranged upon difl'erent levels, means for revolving said curling wheel and for passing the ends through the several sets of grooves and an inclined discharge chute adapted to receive the curled ends.

11. Mechanism for curling the flanges of can ends and the like, comprisin a frame of circular formation, a rotatabe curling wheel mounted therein, a curling ring seg ment positioned outwardly from said wheel and within said frame, there being sets of grooves in said wheel and ring segment arranged upon different levels, means for directing the ends into cooperating grooves in said wheel and ring segment and an inclined directing passage or chute for transferring said ends from one set of grooves to another.

JOHN FREDRIOK PETERS. 

